<template>
  <view class="cart-container">
    <!-- 选择地址 -->
    <MyAddress />
    <!-- 购物车商品列表的标题区域 -->
    <view class="cart-title">
      <!-- 左侧的图标 -->
      <uni-icons type="shop" size="18"></uni-icons>
      <!-- 描述文本 -->
      <text class="cart-title-text">购物车</text>
    </view>
    <!-- 商品列表区域 -->
    <uni-swipe-action>
      <!-- uni-swipe-action-item 可以为其子节点提供滑动操作的效果。需要通过 options 属性来指定操作按钮的配置信息 -->
          <uni-swipe-action-item
          :options="options"
          v-for="(goods, i) in cart"
          :key="i"
          @click="swipeActionClickHandler(goods)"
          >
            <my-goods
            :goods="goods"
            :show-radio="true"
            :show-num="true"
            @radio-change="radioChangeHandler"
            @num-change="numberChangeHandler"
            >
            </my-goods>
          </uni-swipe-action-item>
    </uni-swipe-action>
    <!-- 结算区域 -->
    <MySetting />
  </view>
</template>

<script>
 // 按需导入 mapGetters 这个辅助方法
 import { mapGetters, mapState, mapMutations } from 'vuex'
 // 导入自己封装的 mixin 模块
 import badgeMix from '@/mixins/tabbar-badge.js'
 import MyGoods from '../../components/mygoods/mygoods.vue'
 // 地址组件
 import MyAddress from '../../components/my-address/my-address.vue'
 // 结算组件
 import MySetting from '../../components/my-setting/my-setting.vue'
 
 export default {
   data() {
     return {
       options: [{
             text: '删除', // 显示的文本内容
             style: {
               backgroundColor: '#C00000' // 按钮的背景颜色
             }
           }]
     }
   },
    mixins: [badgeMix],
    computed:{
      ...mapState('m_cart', ['cart']),
    },
    components:{
      MyGoods, MyAddress, MySetting
    },
    methods:{
      ...mapMutations('m_cart', ['updateGoodsState', 'updateGoodsCount', 'removeGoodsById']),
      // 商品的勾选状态发生了变化
        radioChangeHandler(e) {
          // console.log(e) // 输出得到的数据 -> {goods_id: 395, goods_state: false}
          this.updateGoodsState(e)
        },
      // 商品的数量发生了变化
      numberChangeHandler(e) {
        // console.log(e)
        this.updateGoodsCount(e)
      },
      // 点击了滑动操作按钮
      swipeActionClickHandler(goods) {
        // console.log(goods)
        this.removeGoodsById(goods.goods_id)
      },
    }
 }
</script>

<style scoped lang="scss">
  .cart-container {
    padding-bottom: 50px;
    .cart-title {
      height: 40px;
      display: flex;
      align-items: center;
      font-size: 14px;
      padding-left: 5px;
      border-bottom: 1px solid #efefef;
      .cart-title-text {
        margin-left: 10px;
      }
    }
  }
</style>
